I've figured it out. The list of applets only updates after you restart gnome. The wallpaper tray applet showed right up after I logged out and logged back in. Hope this helps others who might run into the same issue.
-- Update description as wallpaper-tray is now a panel applet https://bugs.launchpad.net/bugs/331854 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
